In version 4 you can pinch or double-tap to zoom into your pain-layer diagrams when creating them and add an in-app purchase to export your drawings and notes as a PDF.

This app was designed by an MD pain specialist and PhD pharmacologist to help individuals with chronic pain create a comprehensive picture of the different types of pain felt during the day. By keeping such a detailed diary, users can now see and better understand what they have been feeling and if the treatments being tried are helping them.

Using patent-pending technology, you can now distinctly track, map, and monitor the intensity, pattern, and extent-of-spread of at least 12 different types of pain on your mobile device. We’ve also added a separate tracking system for numbness.

When you are suffering with pain, what you want is to get better again and be able to help your doctor understand what you are feeling.

Tracking your pain is important in treating your pain. When your healthcare team can see exactly how your pain changes over time, trends can emerge that might otherwise go unnoticed.

Pain is a complex sensation that can constantly change with varying intensities, textures, locations, and patterns of spread. This is especially true for individuals who suffer from a severe type of chronic pain called Complex Regional Pain Syndrome (CRPS).

Nanolume® makes it easy for you to track, analyze, and map at least 12 distinct types of pain every day. By more completely knowing what types of pain a person is suffering with, such knowledge can be used to improve the basis upon which your diagnosis and treatment can be developed and/or adjusted.

Pain is a subjective (not objective) sensation — it cannot be measured by a medical device. Its assessment relies on the ability of a person to accurately describe and communicate what he or she feels.

This app helps you explain and show to others precisely what you feel every day.

For each diary entry (pain picture):
• Choose from a list of at least 12 uniquely different pain types; you can even choose multiple types of pain — each one layered separately.
• Select the intensity of each pain type.
• Use your finger or a stylus pen to draw an “outline” around the location where each type of pain is felt.
• The app automatically calculates (estimates) the % body surface area covered (affected) by each (or all) type(s) of pain.
• Open a saved entry (pain picture) and look at the location of each unique pain type (by touching the pain type you want to see) or look at how all the pain types overlap together (by touching "All Layers"). Swipe the picture left or right to review how your pain changes over time.
• Add "Notes" for additional details.
• Miss an entry? Go back and recreate a "pain picture" from the past; then, use the "Calendar" icon to backdate the recreated entry.
• View a summary of your data in "Charts".
• Calendar. Touch the "Calendar" icon to backdate any pain-picture you draw to create a record of what you remember feeling from the past.
• Unlimited Pain Entries. An unlimited number of pain entries can be saved and tracked (data summarized in “Charts”).
• Copy/Edit. Copy or edit-a-copy of a previous pain entry.
• Custom Pain Types. It allows you to define up to 3 customized pain types.
• Export. Email or save a CSV file of your numeric data you can open in a spreadsheet.
• New! Zoom. Pinch or double-tap to zoom.

• Numbness. Track numbness along with pain entries (data charted separately).
• Interactive Summary & Animation. Play an animation of your data showing how “each” of your pain types, or “all” of your pain types, change within any time period you choose by selecting the corresponding start/stop dates. New! PDF Export. Export your charts, drawings, and notes as a PDF file.

Data is stored on your device and is not collected or stored by Nanolume®, LLC.


Copyright © 2014-2020 Nanolume® LLC. All rights reserved. Patent Pending.

What’s New

Version 4.5

In version 4 you can export your charts, drawings, and notes as a PDF file. You also have the ability to "pinch" or "double-tap" to zoom into your pain-layer diagrams when creating them to more precisely outline the exact location, shape, and size of each pain type you want to draw. In update 4.5, we added minor edits to our previously released General Help screen that refreshed and expanded the instructions for all of the app's features. To learn more, tap the info button in the top-left corner of the home screen and choose General Help.

Ratings and Reviews

4.9 out of 5
15 Ratings

15 Ratings

CJ from Minnesota ,

Extremely useful app for chronic pain patients

I developed CRPS over the last year which causes severe neuropathic pain. My pain fluctuates day to day and sometimes it’s hard to describe it. I found this app mentioned on a pain management blog and purchased it. It has been so helpful for me in documenting where my pain is located, kind of pain and intensity. I really like that the pain types are described. My physician was pleasantly surprised when he asked me about my pain, I was able to show my documentation of its progression on this app. Along with my other records, this app helped him to put together a pain management plan based on my individual need.

kmeht ,


For those of us with chronic pain, this app is a must have. It allows us to identify and rate different types of pain all at once AND identify the area of the body each type of pain effects. Also, they are very responsive to any problems or concerns you might have. Responsive and kind and super quick to fix the problem. Get this app!!

ambamberley ,

Issue w/ the “add pain layer” button

The button to add a pain layer often stops working and I have to force close the app and then I am forced to start over. It would be great to have this issue fixed, but also to have an option to edit a pain entry after its “done”. Since editing isn’t possible, I have to start over if the button stops working. I love the concept of this app but for a paid app this is a basic functionality really needs to be fixed.

Developer Response ,

Hello, sorry for not responding sooner. Thank you for sharing your comments. Yes, we do have an option to edit a saved entry (after tapping "Done"). Check out our GENERAL HELP page by tapping on the "i" (info) button located in the left-upper corner of the "Entries/Charts" screen. Tap on the "General Help" link and then scroll down to the section titled, "Viewing, Copying, Deleting, or Adding to the Contents of a Diary Entry." Look down at item #6 where we discuss our app's "Copy/Edit" feature. Regarding the problem you shared using the "Add Pain" layer feature, we have not seen or heard of this being a problem on the devices we have tested, but it looks like we missed something. Would you kindly tell us what Apple device and version iOS software you are using? If you would give us these details, we will investigate this issue and get it fixed. Please post your reply as an update to your review or contact us at Thank you for purchasing our app. Let us know the above and we will make it right.

App Privacy

The developer, Nanolume, LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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